blackberry runs better on america's largest 3g network. and now get the new blackberry tour for only $199.99 >> the time is 5:21, and in this morning's "medical alert" too much tv could raise blood pressure in children. they looked at behavior for children between the ages of 3 and 8. those that spent more time in front of the tv had more higher blood pressure than those who were physically active. this turned out to be true regardless of a child's weight. >> a study found children are deficient in vitamin d. sunlight is a great source of vitamin d. many children don't get enough of it because they spent too much time in doors. 11 news reporter tracie potts has more. >> a new study finds seven in 10 children do not get enough vitamin d. milk, fish, and sunshine are big sources of vitamin d. >> using computers, watching tv, ow or playing video games, there was a 60% of having vitamin d deficiency. >> jasmine carter can't drink milk, so she looks for vitamin d elsewhere. >> i get it from yogurt. sometimes i put on the sun and i have sun scre